# 逻辑运算符
a = 10
b = 20
c = 30


# and
print(a > b and b < c)
# or
print(a > b or b < c)
# not
print(not a > b)


# and 数字运算，只要有一个值为0，结果就位0 ， 否则结果为最后一个非0数字
print(a and b)

print(a or b)

print(not 0)


